Steam-engine governor



(Nd'ModeL) J. W. PEGK. STEAM ENGINE GOVERNOR.

Patented July 12,1881.

ATTORNEYS.

N. PETER$ Fholo-Lilhogmphar, W-"nhingwn, o. c.

UNITED STATES PATENT OFFICE.

JOHN W. PEOK, OF EVANSVILLE, INDIANA.

STEAM-ENGINE GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 244,289, dated July 12, 1881.

Application filed April 16, 1881.

- To all whom it may concern:

Be it known that I, JOHN W. Peon, of Evansville, in the county of Vanderburg and State of Indiana, have invented a new and useful Improvement in Steam-Engine Governors, of which the following is a full, clear, and exact description.

My invention relates to devices which are more particularly intended for use in connection with what is known as the Corliss engine.

The object of the invention is to provide means for quickly stopping the engine in case of accident.

The invention consists in a novel construction, arrangement, and combination of devices connected with the engine, whereby provision is made for closing the steam-valves, as hereinafter described.

The accompanying drawing represents a front elevation of devices embodying my improvements as applied to aOorliss engine, the latter being shown broken away in parts.

A represents the governor-column.

B is the rod connecting the regulator with the trip-gear.

C U are the regulating-rods.

D are the cut-off cams.

E are the stop-cams.

G is a hollow shaft, in which the rod B works.

H is a pin or key working in holes in the shaft G and rod B, and holding them in the position shown. The rear end of the pin or key is pivoted to the short arm of an elbowlever, J, pivoted to alug orlugs, i.

K is a spring bearing against the heel ofthe lever J, with a tendency to press it, so as to hold the pin or key H in the position shown.

L is a stop-pin for limiting the play of the lever J in a direction opposite to the expansion .of the spring.

M is a cord, rope, or chain attached to the long arm of the lever J and passing under a pulley, m, and from thence to any desired part of the engine-room or other portion of the buildmg.

1? is a stud or projection for the lower end of the shaft G to abut against.

Q is the wrist-plate,and q the rods connecting it with the crab-claw.

(No model.)

B are the upper curved limbs of crab-claw, and T are the lower limbs of the same, provided with shoulders to engage with the induction-valve levers and open the valves.

S is a T-shaped lever, pivoted at s, to the long arm of which is pivoted the lower end of the hollow shaft G, and to its short arms are pivoted the regulating-rods O 0 The operation is as follows When the cord M is pulled, or the long arm of the lever J depressed by any other means, the pinor key H is withdrawn sufficiently to allow the shaft G to fall until arrested by the abutmentP. This motion of said shaft through the lever S moves the rod 0 in one direction and the rod 0 in the opposite direction, so as to cause the stopcams E to engage with the limbsR and press down the crab-claws, so that the shoulders upon the lower limbs, T, are prevented from engaging with the valvelevers and opening the valves.

By means of the cord, rope, or chain M the apparatus may be operated from any part of the building, and the engine instantly stopped in case of accident.

'Havin g thus described my invention, I claim as new and desire to secure by Letters Patent-- 1. The stop mechanism for a steam-engine,

consisting of the combination, with the cut-0H- valve gear, as shown, of one or more independent stop-cams, E, located on the same moving part with the cut-off cams D, and a detachable connection with the governor, which transmits the normal action of the governor to the cut-off cams, but which at will may be broken to allow the stop-cam to throw the cut-off gear out of action and stop the induction of steam, as described.

2. The combination, with the governor-column A, the rod B, the hollow shaft G, the lever S, the rods 0 O and the crab-claw limb R, of the stop-cam E, the pin H, the lever J, the rope M, and pulley at, substantially as described, whereby when the rope is pulled the engine stops, as set forth.

JOHN WESLEY PEOK. 

